Pijskre ambjorx comte de sparre



Y whichthe-following? portable're-armsfor for-artillery?thereis a 'j Vis insignificant.

or ot' several thimbles nested together-that is basein the ordinary manner. y that if the thickness of the-cup aroundthe t 'TQ @l iii/7mm, may concern:

mentsV in lCartridges; V(for` which --I have. obtainedLettersPatent .in Franceon March 1l,

Iger is at the obturatingi-ring employed to in sure the closing otthe breech'.

` othersuitable meta-Lto .the front'ot ,whiohrs yordinary way, and it has a hole throughout 'Nien STATES rtnnnnfnitnionx COMTE DE -Afteni?"fkitten-@1' SPAYRRE, or Prints; FRANCE;

CARTRIDGE."

Be itinonnthntl, PIERREAMBJN COMTE im blfaBREengineer5 of Paris, France, have invented certa-in j. nevi1 @and nsefnl Improvedefect duejt'othe difti'culty which `these-car'- tridgeshave in resisting' laterally. the pressure ofjthe gas. yfln .portable lnre-arms it is` moreparticularly infront of the shoulder' that iste' say, at the point where the extractor lies-'-"-that'the resistance is borne by the car-.

tridgejca'se alone, and this isla source of dan'-v ger of explosion. Forjlargerguns this danovercome this defectI construct; cartridges in fsuehfxnanner that the 'pressure of. thegasf exerted' in, front of-.those dangerous rplaces -andinl such manner thatth'e pressure there In the annexed drawing I showin lon gitudlf'g nal sectiomonan enlargedscale, a cartridge? constructed accordim suitahle'for a portable-firearm. A. Y.

"In this cartridge, d is a; cylinder, of steel or fiixe'dby means of a rive'tb' a cup c, whic-l1,'t.o' gether wth the cylinder d, closely its the cartridge-case, and is m adeeither in onep-icce to say, one fitted within another. The headot the rivet?) is arrangedto receive thecap in the its entire length for the ignition of the pow-- der. This apparatus, consistingof'the cyl' inder, cup, and rivet, is introduced into the cartridge-case, which'is closed by the metal In order' to .t'tofxny inyention and" edge of its rear or closed end is'greater'than the space comprised between the vsteel cylinder a and the inner wall ot the barrel the gas will be completely stopped at this place, so #that behind the cup therev will be no expanf 5o sion of gas, and this can onlyproduce compressive force inthe direction of the bore of the barrel and not in a lateral direction. My method of construction has thefurther advantage of 'allowing the cartridge Ato bel 55 formed of several pieces'7 and' therefore the '.resistin power of the metal is not. affected-'a result vwhich is impossible .with cartridges madein a single piecel drawn by means et' a1' number of operations which disaggregate the 6o metal.- F-'or large guns my invention is still more important, because it enables me to dispense withthe obturating-rings, which are very iriconvenient and expensive; y

` secure by Let- Whatl claim, and desireto v ters Patent', is-

4'1. In a cartridge,'the combination offthe. v case, a strengthening-cup,and a metal cylinder fitted. to the outer face of the closed end'v 17e of the cup and both fitted-to th-einterior ofthe case, with a perforated rvetsecuring the cup to the cylinder, substantially as deseribed.. 2., Ina cartridge,` the combina-tion of the der fitted tothe outer faceot the closed end of -the cup and both fittedl to the interior of the ease, with a rivet-securing the cupto'the eyl-inderand'.provided'ivith an ignition-channel formed longitudinally through it., and/a v8o cartridge, substantially as' described.

Instestinlony Whereotl have signed my" vname-'to this specication in thepresence of two subscribing witnesses.

rmtmniiiinr 00Min-nn sriminpgu Witnessesrf. l A Y It is .evident 1 ARTHUR@ HALL, "'ALBERTE. HALL.v

..cas`e, a strengt-heningreup, and a metal cylin# 75 tightly-fitting eapover the 'rear end of the 

